pre[class*='language-'] {
  background: #fafafa; /*覆盖prism.css的背景颜色*/
}

.demo-block {
  display: flex;
  flex-direction: column;
  border: 1px solid #ebebeb;
  border-radius: 3px;
}

.demo-block-content {
  display: flex;
  flex-direction: column;
  row-gap: 20px;
  padding: 20px;
}

.demo-block-code {
  border-top: 1px solid #ebebeb;
  background-color: #fafafa;
}
